Furnace fire-grate and frame



(N0 Model.)

.15: W." LOVE'L'A ND. I FURNACE PI-RE' GRATE AND FRAME.

1%.. 293.258. Patented Feb. 12, 1884.

, ATTORNEYS Iliv rnn grates 3 PATENT @rrioa.

rroaaon w. LOVELAND, on TOPEKA, KANSAS.

FURNACE FlRE-GRATE AND FRAME.

I SPECIFICATION forming part of Letters Patent No. 293,258, datedFebruary 12, 1884.

Application filed May 21, 1883.

To aZZ whom it may concern.-

Be it known that I, HORACE W. LOVELAND, a citizen of the United States,residing at T- peka, in the county of Shawnee and State of Kansas, haveinvented a new and useful Furnace FireGrate and Frame, of which thefollowing is a specification.

My invention relates to improvements in furnace fire-grates; and itconsists in certain features of construction and in combination of partshereinafter described, and pointed out in the claims.

' verse section of the same.

A and B are the sidepieces of the supporting-frame for the grate-bars,and are joined by the front and back pieces, 0 and G. The side pieceshave lugs at each end extending below,

as at a, in which-are pivoted the oscillating cross-bars D and D. Theseoscillating bars have, respectively, the arms d and cl, and the bar Dhas also the lug cl, provided with a hole for engaging the removablelever (1 The side piece A has at the central partan arm, a, extendingbelow and supporting the lever 1 E, that is pivotally attached theretonear the center thereof, as shown. The lower end of the lever E isconnected by the rod 0 to the arm d, while the upper end ofthe lever isconnected by the rod e to the arm cl. The grate-bars F, as shown in Fig.2, are notched at one end on the lower side, to engage the upright legof the oscillating bars, while the other end of the grate-bar has a lug,f, resting on the horizontal leg of the said oscillating bars. When inposition, alternate gratebars have their notched ends at the right hand,while the intervening bars have their notched ends to the left hand.

The operation of the device is as follows: By means of the lever d thebar D is oscillated or rocked, and this oscillating motion by means ofthe lever E and the rods 6 and e is conveyed to the bar D, but in anopposite (No model.)

direction-to wit., when the upright leg of the bar D moves to the rightthe upright leg of the bar D will move to the left hand, and vice versa.The alternate grate-bars, whose notched ends engage the bar D, willreciprocate simultaneously with, but in an opposite direction from, theintervening bars, whose notches engage the bar D. The grate-barsreciprocated by the bar D are at each reciprocation raised and loweredat the other or lefthand end by means of the lugs f, engaging thehorizontal leg of the bar D. In like manner the interveninggrate-barsreciprocated by the lever D are raised and lowered at theirright hand end by the engagement of the respective lugs f with thehorizontal leg of the bar D. This movement endwise and in oppositedirections of contiguous grate-bars, together with the vertical movementdescribed of the opposite ends of the said contiguous grate bars,prevents the clinkers from attaching to the grate-bars, and also breaksand crushes the clinkers into such small fragments that they are,together with the ashes, readily discharged through the spaces betweenthe said gratebars. This, too, is accomplished without open ing thefurnace-doors or in any way retarding the process of combustion. Thelever (l may be operated through a slot in the fire-front or through theopen ash-pit door.

What I claim is- 1. In furnace grate-bars, oscillating cross bars, eachprovided with an upright and a horizontal leg, and so arranged that therespective horizontal legs extend toward each other, and provided withsuitable connecting mechanism, so that the two cross-bars will oscillatesimultaneously and the respective upright legs move in oppositedirections, substantially as and for the purpose set forth.

2. Furnace grate-bars provided at one end with a notch adapted to engagethe upright leg of the oscillating cross-bar, and the other end of thegrate-bar provided underneath with a flat surface and a lug, the formeradapted to slide on the contiguous crossbar, and the latter adapted toengage the horizontal leg of the said crossbar, so as to be actuatedvertiopposite directions and will be actuated vertically at oppositeends, substantially as described, and for the purpose specified.

4:- The combination, with furnace grate-bars, substantially asdescribed, of the cross-bars D and D, provided with the actuatingmechanism E, e, and e, and-the lever (1 I HORACE XV. LOVELAND.

\Vitn esses:

. G. GREENWALD, FRANK HERALD.

